Theoretical Research on Longitudinal Profile Design of Superhighways

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td class="align_left">Design speed (km/h)</td><td class="align_center">120</td><td class="align_center">100</td><td class="align_center">80</td><td class="align_center">60</td><td class="align_center">40</td><td class="align_center">30</td><td class="align_center">20</td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td class="align_left">Maximum slope (%)</td><td class="align_center">300</td><td class="align_center">250</td><td class="align_center">200</td><td class="align_center">150</td><td class="align_center">120</td><td class="align_center">100</td><td class="align_center">60</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Current minimum length of highway slopes.</div>

Journal of Advanced Transportation

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Table 7

Table 7: Theoretical Research on Longitudinal Profile Design of Superhighways 